Photographic-printing machine.



c. J. BVERBTT & J. v. MUADAM. PHOTOGRAPH@ PRINTING' MAGHINB.

` APvPL-IGATION FILED F3314! NOG- UNITED, singes PATENT onirica.

cuantas J. Evnnnrr AND Jonnv. MCADAM, or New Yoan, N. Y., Assreivoasro aaron/rra manine COMPANY, OFNEW YORK, N. r., OoaPoRATrON or New YORK.

lPHOTC)GRAPHIC-PRINIING' MACHINE..

Specification of Letters-Patent.

Patented March 31,1908.

' Application mea February 14', 1906.y seriaiNo. 300,988.

To all w71 om 'it may"concern.'-

Beit known that 'we,GHARLEs J. EvERE'rr and J oHN Vi McAnameitizens of the United States, and residents of v'the borough of Manhattan, inthe city .andl State` of New Yorkf` have invented a new and useful Improvement in Photographic-Printing Machines of which the following 'is a specification. y

lOur invention relates to an improvementin that type of photographic printing mashines iniwhich means kare rovidedforthe :gpntinueus printingof long s ieets whereby a more perfect feed of the material.'

around. the transparent cylinder is rovided and also a more perfect contact wit the periyliery of the transparent cylinder 'is estab l1"sed."

With these objects in view our invention consists in provi-ding a plurality of narrow belts fcr'feeding the material around the eriphery ci? the transparent cylinder and soconsists in' providing one or more of the belt rollers with a plurality of crowns `over which the beltsare caused t travel for reventing the lateral displacement of the be ts.

p A practical embodiment of our invention is'represented in the accompanying drawings,

in which y.

i Figure 1y portion of a l with our improvements applied thereto, Fig. 2 is a vertica section taken from front to rear through' the-same, Fig. 3 is a detail view partially in longitudinal central section and artially in side elevation of one of the p ain rollers, and Fig. 4 is a similar view of one of the crowned rollers with several-of the cylinder'belts shown in position thereon.

The' photographic printing machine frame is denoted byv 1. It may be provided with the yusual compartment V2 for the .photographic sheet supply roll 3 and a box 4 for rerpresents in front elevation a lceiviilg theA photographic sheet and sheet of drawings after the sheet has been printed.

The transparent cylinder is denoted by 5 and -it has located .therein a sourceof light,

, PS0? such, for instance, as 1, swings otographic printing machine and-lower back rollers are denoted by 9 and`10, respectivelyY These four rollers are mounted to :rotate in suit-able bearings Kin the frame 1 in proximity to the periphery of the .transparent cylinder 5.

A plurality of narrow belts 1.1 pass around the rollers 7, 8, 9, 10 and partially around the periphery of the transparent cylinder 5, the said cylinder being supported by said narrow belts, Thesel narrow belts are located `in close roximity to eachother and serve to hold t e interposed photographic sheet 3 and sheet of drawings l2 in. clase contact with the periphery cf the transparent cylinder 'W e have cund, in practice, that it is errtremely difficult to properly feed the sheet ot' drawings and photographic sheet arcund the peri hery ot the cylinder by useoi" a wide belt ecause of the tendency of the wide belt to creep from one side to the other of the machine. We have found that the use oi a plurality of' 4narrowrbelts entirely overcomes this objection and the belts at the same time prevent anytendency of the .photographic sheet or sheet of' drawings to become wrinkled or' creased. while being passed around the transp-arent cyiinder. To mere ullyinsure against any tendency en the part of the narrow belts to creep laterally along the rollers, we provideone or more of the rollers with a plurality of crowns 13 over which the belts are caused to ass. In the present instance we have provi ed the u per and lower rear rollers 9 and 10 with t rese crowns 13.

For convenience in tightening the belts we rovide means 14 for adjusting the upper back roller 9. I

What we claim is A y 1. A photographic printing machine comrising a rotary transparent cylinder, means or supplying light tiereto, and means for passing a photographic sheet andan interposed sheet of'drawingsf around the periph* ery of the said cylinder, said means comprising a .lurality of narrow belts.

.2. A p ictographic printing machine com' prising a rotary transparent cylinder, means for supplying .light thereto and means for passing a photographic sheet and an interposed sheet of drawings around the periphery of the said cylinder, said. means comprising a plurality of rollers and a plurality of belts carried thereby.

3. A 'photographic printing machine tom- CES ' prising a rotary trans areiit cylinder, means or supplying light t ereto and means for Apassing a photographic. sheetand an inter# prisingfa rotarystiifansplarent cylinder, means or su plying lig'r'it t ereto, a plurality of rollers yocated 1n proximity to the said cylinder and a" plurality of belts passing partially around the cylinder ,and around the said rollers for passing a photographie sheet and an interposed sheet of drawings into and out of Contact with the periphery of the cylinder.

5. A photographlc printing machine comprising a rotary transparent cylinder, means or sup lying light thereto, upper and lower front ro lers and upper and lower back rollers located in proximityto the cylinder and a A.

plurality o belts passing partially around the cylinder and around thesaid rollers for passing a photographic sheet andian inter-- posed sheet of drawings into and out' of con-l l to each other. l A

In testimony, that we. claim the foregoing as our invention', 'We have signed o ur names in resence of two Witnesses,'this 13th day February 1906. I

CHARLES J. EVERETT. JOHN V. MCADAM.

Witnesses: FRED HAYNES,

HENRY THIEME.

435 plurality of belts, located in close proximity 

